E> (SubsEt PL/I, k=1..8) A sEriEs of Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=PL/I">PL/I subsEts, simplifiEd for studEnt usE. ["SP/k: A SystEm for TEaching ComputEr Programming", R.C. Holt Et al, CACM 20(5):301-309, May 1977]. (1997-12-27)